问题
填空题
按照例子写出下列单词的现在分词形式和过去式。
take → taking → took
1. tell → ______________ → ______________
2. fly → ______________ → ______________
3. do → ______________ → ______________
4. climb → ______________ → ______________
答案
1. telling, told 2. flying, flied 3. doing, did 4. climbing, climbed